package com.example.demo.customer;
import com.example.demo.exception.NotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Objects;

@Service

public class CustomerService {
    private final static Logger LOGGER = LoggerFactory.getLogger(CustomerService.class);
    private final CustomerRepository customerRepository;

    @Autowired
    public CustomerService(CustomerRepository customerRepository) {
        this.customerRepository = customerRepository;
    }

    List<Customer> getCustomers() {
        LOGGER.info("getCustomer called");


        return customerRepository.findAll();
    }

    Customer getCustomer(Long id) {
        return customerRepository
                .findById(id)
                .orElseThrow(() -> {
                    NotFoundException notFoundException = new NotFoundException("customer" + id + " 无法找到");
                    LOGGER.error("error: getCustomer {}" + id, notFoundException);
                    return notFoundException;

                });


    }
}
